CN1136324A - Photosolder resist ink, printed circuit board, and process for producing the same - Google Patents
Photosolder resist ink, printed circuit board, and process for producing the same Download PDFInfo
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- CN1136324A CN1136324A CN95190991A CN95190991A CN1136324A CN 1136324 A CN1136324 A CN 1136324A CN 95190991 A CN95190991 A CN 95190991A CN 95190991 A CN95190991 A CN 95190991A CN 1136324 A CN1136324 A CN 1136324A
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- resist ink
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0388—Macromolecular compounds which are rendered insoluble or differentially wettable with ethylenic or acetylenic bands in the side chains of the photopolymer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
- H05K3/287—Photosensitive compositions
Abstract
A photosensitive solder resist ink comprises (A) an ultraviolet-curable resin containing 0-20 wt % of aromatic ring moiety; (B) an epoxy compound soluble in a diluent; (C) a photopolymerization initiator; and (D) a diluent. The photosolder resist ink which has a large allowable width of precuring in its use, permits a printed circuit board to be stored for long after precuring, is excellent in resolution, sensitivity and soldering resistance, and can be developed with a printed circuit board which is produced using the above ink, excellent in close contact, chemical resistance, metal resistance coating properity and electrical properties.
Description
Technical field
The present invention relates to a kind ofly have photosensitive photosolder resist ink (coating) that UV cured property and thermosetting, available dilute alkaline soln develop, with the Printed circuit board and manufacturing methods of this seal China ink manufacturing.
Background technology
In recent years, in formation method as the corrosion-resisting pattern of civilian and the various printed circuit board (PCB)s that industry is used, use the method for dry film and the aqueous black coating of seal photosensitive against corrosion to occupy very big ratio to replace the screen painting method, these methods have excellent image dissection degree and dimensional precision, can correspondingly be used for the circuit densification of printed-wiring board (PWB).
As the aqueous photosensitive photosolder resist ink coating (being commonly referred to (aqueous) photosensitive photosolder resist ink) in the above-mentioned photosensitive seal China ink against corrosion, on Japan special permission communique 56-40329/1981, disclose a kind ofly with the reaction of unsaturated monocarboxylic and Resins, epoxy, adding the ultraviolet hardening resin that multi-anhydride forms simultaneously is the composition of main component.In addition, also disclose a kind of acid anhydrides that in the phenolic varnish type epoxy acrylate, adds on day disclosure special permission communique 61-243869/1986 and formed, contained the aqueous photosensitive photosolder resist ink coating of forming by soluble ultraviolet hardening resin, Photoepolymerizationinitiater initiater, thinner and epoxy compounds in the dilute alkaline soln thermosetting composition, that available sig water develops.
In above-mentioned seal China ink, particularly under the occasion of the ultraviolet hardening resin of the multi-anhydride add-on type in the phenolic varnish type epoxy acrylate and the seal China ink against corrosion of having mixed epoxy compounds, remake heat hardening after UV cured, the anti-weldering that can finally obtain having good rerum natura is filmed.Therefore, be widely used especially in manufacturing and require high-grade industry and civilian product.
In above-mentioned seal China ink against corrosion, used ultraviolet hardening resin, as mentioned above, imported the carboxyl that to do the alkali lye development to photosolder resist ink of abundant amount by multi-anhydride, mix thermosetting epoxy compounds in this seal China ink simultaneously and blocked carboxyl in this photosolder resist ink because of heat embrittlement, like this, improve the cross-linking density of photosolder resist ink in the lump, the anti-weldering of final formation is filmed have stability heat-resisting, chemically-resistant, can improve thermotolerance, resistance to chemical reagents, electrocorrosion-resisting and the anti-Metal plating of scolding tin.
In order to use above-mentioned seal China ink against corrosion on substrate, to form anti-corrosion line pattern line, usually adopt following method, for example, after the method for use pickling process, sputtering process, spin coated, roller coating, the coating of curtain formula or screen painting etc. is coated on seal China ink against corrosion on the substrate, under 60-120 ℃ temperature, carry out Procuring again, with the organic solvent of volatilization as thinner.Then, with the negative masking film that is painted with pattern directly or the film coated surface of being close to dry indirectly, behind irradiation ultraviolet radiations such as luminescent lamp, Cooper-Hewitt lamp, middle medium pressure mercury lamp, high pressure mercury vapour lamp, extra-high-pressure mercury vapour lamp, xenon lamp or metal halide lamp, developing forms the pattern line.Under 120-180 ℃ temperature, do 30 minutes heating again, make the epoxy compounds sclerosis, improve overlay film intensity, hardness and the resistance to chemical reagents etc. of etchant resist.
In aforesaid method, Procuring is an effective operation, and it also makes the desorption of described negative masking film become possibility when the ink layer against corrosion that improves coating is the rete of non-adhesive, and in addition, it is available to prevent the stained of ink layer.Yet, when in above-mentioned seal China ink against corrosion, having mixed epoxy compounds, because itself and the reaction that is present in carboxyl in the uv-hardening resin etc. also can produce heat embrittlement under the Procuring condition, therefore, generate problems such as poor visualization in the developing procedure and image dissection degree be not high easily.Particularly when using the Resins, epoxy that dissolves in solvent commonly used as epoxy compounds, this tendency is remarkable especially.Available Procuring condition is all very stable condition and range of a kind of temperature and time, be generally 80 ℃, below 20 minutes, also can be 80 ℃ under the special situation, below 30 minutes (below, will be called " Procuring tolerance band " for guaranteeing the preplasticizing condition and range that good development and image dissection degree are permitted).
Can infer, the reason that produces above-mentioned phenomenon is: uv-hardening resin is fine with the intermiscibility of the epoxy compounds that dissolves in solvent, the two is in uniform admixture in the forming process of dry coating, therefore, the reaction of carboxyl and epoxy group(ing) takes place easily.Again, because the homogeneity of this admixture is then mixed the Resins, epoxy that dissolves in solvent more, can dilute the composition with UV cured property, its result causes sensitivity to descend easily.Have, when adopting demulcent Procuring condition as described above, diluting solvent easily residues in the dry coating again, thereby, pattern might or take place cover film, or this pattern covers the difficult phenomenon from the dry coating sur-face peeling of film by stained.In addition, in the making of the printed circuit board (PCB) of reality, sometimes,, substrate temporarily must be preserved with the state of Procuring, be carried out exposure process after next day or a few days again for operational needs.At this moment, if during used material to be above-mentioned seal against corrosion black coating, then, therefore, when preserving for a long time, cause poor visualization and image dissection degree low easily owing at room temperature also can carry out the sclerosis of epoxy compounds to a certain degree.
In order to address the above problem, disclose on day disclosure special permission communique 1-141904/1989,3-250012/1991 and day disclosure special permission communique 4-217252/1992 a kind of at bisphenol type epoxy base acrylate with the acid anhydrides addition and the uv-hardening resin that gets, in a kind of uv-hardening resin that the addition acid anhydrides forms in the phenolic varnish type epoxy acrylate etc., mix as the trickle sprills of thinner epoxy compounds, that be insoluble in triglycidyl isocyanurate etc., the aqueous photosensitive photosolder resist ink coating that available dilute alkaline soln develops.
In the black coating of this anti-corrosion seal, the micro mist shape epoxy compounds that is insoluble in thinner is present in the overlay film unevenly with solid state, and seldom entwines between the ultraviolet hardening resin when Procuring, it lacks with the contacting also of carboxyl in being present in this resin, is difficult to carry out sclerous reaction.In addition, after the Procuring, the UV cured property composition in the overlay film, its part beyond the particulate of the epoxy compounds that exists is unevenly keeping high density, therefore, the low problem of sensitivity during also rare ultraviolet exposure.On the other hand, its advantage also has: when doing final sclerosis, if temperature reaches the above temperature of fusing point of this epoxy compounds, then can improve the black overlay film intensity of seal against corrosion, hardness, reach resistance to chemical reagents.
According to aforesaid advantage, at the acid anhydrides affixture that uses the phenolic varnish type epoxy acrylate during,, can use little powdered, be insoluble in the epoxy compounds of thinner for guaranteeing the Procuring tolerance band as uv-hardening resin.But at this moment, the thermosetting of filming after the Procuring is subjected to the influence of the particle diameter of micro mist shape epoxy compounds.Even the little powdered epoxy compounds of heating and melting, this epoxy compounds also is difficult in the state fully uniformly that becomes in the dry coating with thing such as uv-hardening resin, also inevitably, between epoxy compounds and uv-hardening resin tangible interface can appear.For this reason, existing people has adopted the particle diameter of all ways with little powdered epoxy compounds of reducing to be insoluble in thinner as far as possible, yet these particle diameters of pulverizing the micropowder that obtains by physical method are limited after all.Therefore, be insoluble in little powdered epoxy compounds of thinner,, improve its thermotolerance and electric erosion resistance and still have certain limit even then can guarantee the tolerance band of Procuring so long as use.
Here, replace the resulting superiority of epoxy compounds that dissolves in solvent, also can obtain by using following compound with the micro mist shape epoxy compounds that is insoluble in thinner:
In the polymkeric substance of ethylene unsaturated monomers, import UV cured property the ethylene type unsaturated group, dissolve in the sig water resin as uv-hardening resin.For example, the outstanding resin that side groups such as (methyl) Hydroxyethyl acrylate, (methyl) glycidyl acrylate are arranged in styrene-maleic acid copolymer or (methyl) acrylate-maleic acid etc.; The outstanding compound that (methyl) glycidyl acrylate side group is arranged in the multipolymer of the ethylene type unsaturated monomer with carboxyl and acrylate, vinylbenzene etc.; Or be addition in the unitary polymkeric substance (methyl) vinylformic acid containing the ethylene type unsaturated monomer with epoxy group(ing), react resulting compound with multi-anhydride again.In addition, in specification sheets of the present invention, " (methyl) acryl " means acryl or methacryloyl; therefore, for example, (methyl) vinylformic acid promptly means vinylformic acid and/or methacrylic acid; again, (methyl) acrylate means acrylate and/or methacrylic ester.
On the other hand, with the phenolic varnish type epoxy acrylate, the same with the black situation of the anti-corrosion seal of diluted alkaline developable, its unavoidable problem is: the heat embrittlement state in the final photosolder resist ink coating is inhomogeneous, and the interface between epoxy compounds and the uv-hardening resin is obvious.
As the uv-hardening resin composition that has utilized these vinyl polymerizations systems and used aqueous anti-corrosion seal micro mist shape epoxy compounds, the diluted alkaline developable that is insoluble in thinner black, on day disclosure special permission communique 6-95384/1994, disclose a kind of in styrene-maleic anhydride copolymer the outstanding ultraviolet hardening resin that has methacrylic acid 2-hydroxyl ethyl ester side group to form, and to disclose a kind of triglycidyl isocyanurate that uses be to be insoluble in method thinner, normal temperature solid epoxy compounds.The document is pointed out, the light sensitivity when exposing in order to improve, and when heat embrittlement, in order to promote the heat embrittlement reaction quickly, significantly improve the solidity to corrosion and the reliability of overlay film against corrosion, when adopting specific dispersing method, be necessary significantly will be insoluble in the epoxy compounds miniaturization of thinner.In embodiment, iff pulverizing triglycidyl isocyanurate with roller mill, then its effect is inadequate.
Problem of the present invention is, a kind of photosensitive photosolder resist ink coating that can sig water develops is provided, and described seal China ink coating Procuring tolerance band in use is wide; But its substrate prolonged preservation after Procuring; In addition, the black coating of described seal has excellent image dissection degree, light sensitivity, reaches soldering resistance etc.; The scolding tin anticorrosion layer that uses described seal China ink to form on substrate demonstrates excellent connecting airtight property of substrate, resistance to chemical reagents, anti-metal coat and electrical property.Wherein, excellent scolding tin thermotolerance and electric erosion resistance have particularly been shown.
In addition, other problem of the present invention is, a kind of Printed circuit board and manufacturing methods that uses above-mentioned photosensitive photosolder resist ink coating to make is provided, and above-mentioned printed circuit board (PCB) has excellent connecting airtight property of substrate, resistance to chemical reagents, anti-metal coat and electrical property; Wherein, particularly have excellent scolding tin thermotolerance and electric erosion resistance.
The announcement of invention
The photosensitive photosolder resist ink that can be developed by sig water of the present invention is a kind of black coating of seal against corrosion that following material forms that contains:
A. the uv-hardening resin that contains aromatic nucleus part 0-20% (weight), described resin system is had the ethylene type unsaturated monomer 40-100 mole % of epoxy group(ing) by (a), (b) can with polymkeric substance that other ethylene type unsaturated monomer 0-60 mole % of above-mentioned monomer copolymerization is become in, to this polymkeric substance of each epoxy equivalent (weight), allow 0.7-1.2 stoichiometric (methyl) vinylformic acid, and saturated or undersaturated multi-anhydride react with it and get;
B. dissolve in the epoxy compounds of thinner;
C. Photoepolymerizationinitiater initiater; And
D. thinner.
About the A. uv-hardening resin
In the present invention in the uv-hardening resin of Shi Yonging, the purpose of mixing the ethylene type unsaturated monomer with epoxy group(ing) of (a) composition is, in above-mentioned polymkeric substance, introduce in the epoxy group(ing), to this interpolation (methyl) vinylformic acid, give the UV cured property that polymkeric substance produces with the ethylene type unsaturated double-bond by again.Therefore, the photo-hardening of uv-hardening resin is influenced by ethylene type unsaturated monomer content in this polymkeric substance, that have epoxy group(ing) directly.Described composition contain the 40-100 mole % that ratio must account for the unsaturated monomer total amount in this polymkeric substance.When this content was less than 40 moles of %, the UV cured property of described resin was just insufficient, in the forming process of pattern, can produce its insufficient sensitivity and the not good problem of image dissection degree, in addition, in the final anti-weldering that forms was filmed, the rerum natura of the thermotolerance of its scolding tin etc. was also not enough.
As aforementioned composition ethylene type unsaturated monomer (a), that have epoxy group(ing), the example that can enumerate has: (methyl) glycidyl acrylate, (methyl) vinylformic acid (3,4-epoxy group(ing) cyclohexyl) (methyl) acrylic acid epoxy group(ing) cyclohexyl derivatives class of methyl esters etc. and, the alicyclic epoxy derivative of (methyl) acrylate etc.Above-mentioned monomer can use separately or and close use.Wherein, particularly suitable be (methyl) glycidyl acrylate, when (methyl) glycidyl acrylate was used with the ratio to the 60-100 mole % of the unsaturated monomer total amount in the above-mentioned polymkeric substance, above-mentioned anti-weldering was filmed and can be demonstrated excellent scolding tin thermotolerance and electric erosion resistance especially.
Composition (b) so long as can get final product with the ethylene type unsaturated monomer of mentioned component (a) copolymerization, can carry out and usefulness as required, to regulate the rerum natura of photo-hardening and cured film.The example that this composition can be enumerated has: (methyl) methyl acrylate, (methyl) ethyl propenoate, (methyl) propyl acrylate, (methyl) butyl acrylate, (methyl) isobutyl acrylate, (methyl) tert-butyl acrylate, (methyl) 2-EHA, (methyl) vinylformic acid n-octyl, (methyl) vinylformic acid ester in the positive last of the ten Heavenly stems, (methyl) isodecyl acrylate, (methyl) dodecylacrylate, (methyl) vinylformic acid tetradecyl ester, (methyl) vinylformic acid cetyl ester, (methyl) stearyl acrylate acid esters, (methyl) cyclohexyl acrylate, the aliphatics of the straight or branched of (methyl) isobornyl acrylate etc., or (methyl) acrylate of alicyclic (still, also can contain some unsaturated link(age) in this ring); And as (methyl) hydroxyethyl acrylate, (methyl) vinylformic acid methoxyl group ethyl ester, (methyl) vinylformic acid ethoxy ethyl ester, diglycol monotertiary (methyl) acrylate, triglycol list (methyl) acrylate, glycol ether system (methyl) acrylate of methoxyl group diglycol monotertiary (methyl) acrylate etc.; And, similarly, as propylene glycol system (methyl) acrylate, single (methyl) acrylate of butyleneglycol system, single (methyl) acrylate of glycerol etc.; And (methyl) acrylate of the fragrant family of (methyl) vinylformic acid benzyl ester etc., and as (methyl) acrylamide, N-methyl (methyl) acrylamide, N-propyl group (methyl) acrylamide, the N-tertiary butyl (methyl) acrylamide, uncle's N-octyl group (methyl) acrylamide, the acrylamide based compound of diacetone (methyl) acrylamide etc.; And vinyl pyrrolidone, vinyl cyanide, vinyl acetate between to for plastic, vinylbenzene, alpha-methyl styrene, vinyl ether etc.Above-claimed cpd can separately or be used in combination.Wherein, (methyl) acrylate of the aliphatics of straight or branched or alicyclic (but but in the ring also some undersaturated key), (methyl) acrylic acid hydroxy alkyl ester, (methyl) alkoxyalkyl acrylate, single (methyl) acrylate of glycerol etc. are regulated the hardness and the oiliness of above-mentioned resin coating easily because of it, and regulate the final hardness of filming against corrosion that forms easily, so particularly suitable.
The aromatic nucleus part that is present in the above-mentioned uv-hardening resin must surpass 20% (weight) as its content in 0-20% (weight), then can not guarantee to obtain sufficient Procuring tolerance band.In addition, said herein aromatic nucleus partly means to contain and belongs to aromatic ring, as " chemical big dictionary (first version) " (1989, the same people of Tokyo chemistry, the 202nd page) upward defined, comprise the aromatic nucleus of phenyl ring, benzene condensed ring, non-benzene series and aromatic heterocycle etc., and do not comprise the substituting group of the alkyl that is incorporated on these rings etc.
The weight average molecular weight of above-mentioned uv-hardening resin is preferably in 5000-100000.Promptly, in order to reach highly sensitive and high image dissection degree as one of purpose of the present invention, need make uv-hardening resin have sensitive to change by exposure for the solvability of alkaline solution, but, in above-mentioned uv-hardening resin, when its molecular-weight average greater than 100000 the time, then against corrosion filming can be reduced its solvability for sig water under extremely low exposure.On the other hand, under unexposed state, its solvability for alkaline solution is also very little, and only the boundary member of the negative masking film that attaches when exposure has light leak slightly, and consequent sclerosis also can influence the cancellation performance when developing.Therefore, under this occasion, the sensitivity that the solvability that produces because of exposure changes is little.On appearance, its sensitivity is very high, and still, its image dissection degree easily seems not enough.On the other hand, weight-average molecular weight is less than 5000 o'clock, and its sensitivity is variation easily also.From taking all factors into consideration above-mentioned weight-average molecular weight and described consumption with ethylene type unsaturated monomer of epoxy group(ing), weight-average molecular weight with uv-hardening resin is 10000-30000, use (methyl) glycidyl acrylate as ethylene type unsaturated monomer with epoxy group(ing) for well; And its consumption is when accounting for the scope of 60-100 mole % of total amount of whole ethylene type unsaturated monomer, can reach the best effect that has highly sensitive and high image dissection degree simultaneously.
Above-mentioned polymkeric substance can for example, be obtained by methods such as solution polymerization or letex polymerizations by known polymerization process.For example, adopt and in suitable organic solvent, add polymerization starter, heating, stirring method under nitrogen gas stream, or, adopt polymeric method under refluxad, polymerization by above-mentioned composition (a), in case of necessity, the mixture of the ethylene type unsaturated monomer of forming by composition (b) again.
As above-mentioned organic solvent, can enumerate having of example: the ketone of methylethylketone, pimelinketone etc.; And aromatic hydrocarbon based as toluene, dimethylbenzene etc.; And as the acetates of vinyl acetic monomer, N-BUTYL ACETATE, oxytol acetate, acetic acid ethylene glycol butyl ether, diethylene glycol monobutyl ether acetic ester, propylene glycol monomethyl ether acetic ester etc., reach dialkyl group glycol ethers etc.Described solvent can be separately, also can mix use.
As the above-mentioned polymeric polymerization starter that is used for, the example that can enumerate has, the diisopropyl benzene hydrogen peroxide of hydroperoxidation compound class, cumene hydroperoxide hydrogen, tertbutyl peroxide; And the dicumyl peroxide, 2 of dialkyl peroxide class, 5-dimethyl-2,5-2-(tert-butyl hydroperoxide)-hexane, 1,3-is two-(tert-butyl hydroperoxide sec.-propyl)-benzene, t-tutyl cumyl peroxide, di-t-butyl peroxide, 2,5-dimethyl-2,5-two-(tert-butyl peroxide)-hexin-3; And diisobutyryl peroxide, peroxidation two 2,4 dichloro benzene acyls, dilauroyl peroxide, dibenzoyl peroxide, the diacetyl peroxide of peroxidation two acyl classes; And methyl ethyl ketone peroxide, mibk superoxide, pimelinketone superoxide, the acetylacetone peroxide of ketone peroxide class; And the peroxide berberic acid tert-butyl ester, the t butyl 2 ethyl peroxyhexanoate, 3,5 of peracid alkyl esters, 5-trimethylammonium peroxide hecanoic acid t-butyl ester, tert-butyl peroxy acetate, t-butyl per(oxy)benzoate; And peroxide two carbonic acid diisopropyl esters, peroxide two carbonic acid diisopropyl esters, the peroxide two carbonic acid di-secondary butyl esters of peroxide two carbonates; And the azobis isobutyronitrile, 2,2 of azo-compound class '-two methyl isobutyrates of azo, azo dicyanogen methyl isophorone valeronitrile, 1,1 '-azo two (hexanaphthene-1-nitrile), 2,2 '-azo two (2-methyl-N-(2-hydroxyethyl)-propionic acid amide) etc.Also can use redox initiator as aforesaid polymerization starter again.
Can be in corresponding to scope with the molecular weight of the uv-hardening resin of this gained in the hope of, the molecular weight of above-mentioned polymkeric substance.But, for regulating described molecular weight, also available known chain-transfer agent carries out polymerization.
Make an addition to the consumption of (methyl) acrylate of above-mentioned polymkeric substance, with respect to the amount of the ethylene type unsaturated monomer in the polymkeric substance with epoxy group(ing), should be at the 0.7-1.2 chemical equivalent.If above-mentioned consumption is less than 0.7 chemical equivalent, then residual too much in uv-hardening resin have an epoxy group(ing), and the developing performance after the sclerosis when Procuring takes place causes exposing easily descends; Again, when its consumption during greater than 1.2 chemical equivalents, then residual unreacted (methyl) vinylformic acid also becomes a problem.
As saturated or undersaturated multi-anhydride, the example that can enumerate has: succinyl oxide, methylsuccinic acid acid anhydride, maleic anhydride, citraconic anhydride, Pyroglutaric acid, itaconic anhydride, phthalic anhydride, tetrahydrochysene phthalic anhydride, methyl tetrahydrochysene phthalic anhydride, suitable-Nei-5-norbornylene 2, the dibasic acid anhydride of 3-dicarboxylic anhydride, hexahydro-phthalic anhydride, methyl hexahydro-phthalic anhydride etc.; And as above acid anhydrides such as the triprotic acid of trimellitic acid 1,2-anhydride, pyromellitic dianhydride, benzophenone tetracarboxylic anhydride, methylcyclohexane tetracarboxylic anhydride etc.
The purpose of mixing above-mentioned acid anhydrides is in order to give uv-hardening resin with acid number, to make this resin can have redispersion under sig water and reach dissolved performance again.The consumption of described acid anhydrides preferably is chosen in the acid number that the makes described uv-hardening resin scope at 25-150.Less than 25, then development property is bad as its acid number, again, greater than 150, then owing to residual in the etchant resist after the heat embrittlement carboxyl arranged, easily cause its electrical property, electrocorrosion-resisting and water tolerance to descend, and these problems also is the significant deficiency that anti-weldering is filmed as its acid number.In addition, when acid number during, can obtain best effect at 40-100.
The addition reaction of above-mentioned (methyl) vinylformic acid and saturated or undersaturated multi-anhydride can be carried out with known method.For example, (methyl) acrylic acid addition reaction can be in the solvent solution of above-mentioned polymkeric substance, with usual method, be preferably 60-150 ℃, better, be under 80-120 ℃ temperature, use the thermopolymerization hold back agent of quinhydrones, quinhydrones monomethyl ether etc., reach the tertiary amines of benzyl dimethylamine, triethylamine etc., and the quaternary ammonium salts of chlorination three methylbenzyl ammoniums, methyl chloride three second ammoniums etc. or, re-use triphen etc. and be catalyzer, reaction and getting.Addition reaction saturated or unsaturated multi-anhydride also can be carried out with above-mentioned same method.
The photosensitive anti-corrosion consumption that is coated with the uv-hardening resin of mixing in the film component of the present invention, sensitivity and performance characteristic in order to ensure Yin Mo, and in order to ensure the final good physicals of filming against corrosion that forms, its consumption is preferably in the scope of the 10-80% (weight) of the black total amount of whole seal, and this prints the organic solvent in the thinner that black total amount deduction mixes simultaneously.
Dissolve in the epoxy compounds of thinner about B.
When the epoxy compounds that dissolves in thinner blocks the carboxyl in the seal China ink against corrosion by heat embrittlement, improved the cross-linking density of photosolder resist ink, make the thermal property and the stable chemical performance of the photosolder resist ink of final formation, have the effect of thermotolerance, resistance to chemical reagents, electric erosion resistance and the anti-Metal plating etc. that improve scolding tin.
, in the past, as previously mentioned, during the fusion epoxy compounds, under the condition of Procuring, this compound causes heat embrittlement with being present in the reaction of the carboxyl in the uv-hardening resin phenomenon can take place also in seal China ink against corrosion.Therefore, in developing procedure, produce easily not good etc. the problem of poor visualization and image dissection degree.Particularly, when the intermiscibility of use and uv-hardening resin and thinner etc. dissolved in the epoxy compounds of thinner preferably, this problem was bigger.Why use is insoluble in the micro mist shape epoxy compounds of thinner, also is in order to avoid this problem.
Yet, the epoxy compounds that dissolve in thinner of fusion in seal China ink against corrosion of the present invention, although it can mix with uv-hardening resin and thinner etc. in the seal China ink, and the intermiscibility with the uv-hardening resin composition with carboxyl in dry coating is good, can be under the condition of Procuring, because of heat embrittlement produces development and the bad problem of image dissection degree yet.Though its concrete reason is unclear, still, roughly deducibility is as follows:
In the dry coating of aforesaid seal China ink against corrosion, the epoxy compounds that has the uv-hardening resin composition of carboxyl and dissolve in thinner is from the surface, and its intermiscibility is good, but on the rank of fine level, then presents non-intermiscibility.Its certain difficulty that reacted to each other under the Procuring condition is so each composition is in clear and definite state disconnected from each other.
According to above-described reason, seal China ink against corrosion of the present invention, its particle diameter is in the state disconnected from each other of fine level, this fine degree is far smaller than breaking method with physics, the particle diameter when using the restricted micro mist shape epoxy compounds that is insoluble in thinner, therefore, in the heat embrittlement process of Procuring, can not be subjected to the restriction of particle diameter, fully reach the purpose that heat embrittlement with epoxy compounds improves overlay film intensity, hardness, resistance to chemical reagents, anti-Metal plating and electric erosion resistance etc. that anti-weldering films.Particularly, the stable on heating effect of its electric erosion resistance and scolding tin is remarkable.
In addition, be insoluble in the system of micro mist shape epoxy compounds of thinner, also can solve foregoing problems by reducing particle diameter as much as possible in use.But, as previously mentioned, though the Procuring tolerance band can guarantee, improve its anti-Metal plating and electric erosion resistance etc. and still be subjected to certain restriction.
As the aforementioned epoxy compounds that dissolves in thinner, the example that can enumerate has: bisphenol A type epoxy resin, bisphenol f type epoxy resin, phenol novolak type epoxy resin, the cresols phenolic resin varnish type epoxy resin, bisphenol-A phenolic type varnish type Resins, epoxy, the Sorbitol Powder polyglycidyl ether, the sorbitan polyglycidyl ether, the glycerol polyglycidyl ether, two glycerol polyglycidyl ethers, the polyglycerol polyglycidyl ether, the neopentyl alcohol polyglycidyl ether, the TriMethylolPropane(TMP) polyglycidyl ether, the tetramethylolmethane polyglycidyl ether, 1,6-hexylene glycol polyglycidyl ether, ethylene glycol diglycidylether, polyethyleneglycol diglycidylether, propylene glycol diglycidylether, polyethyleneglycol diglycidylether, 1, the 4-butanediol diglycidyl ether, gather 1, the 4-butanediol diglycidyl ether, the how pure poly epihydric alcohol ether compound of resorcinol diglycidyl ether etc.; Reach epihydric alcohol ester compound as hexanodioic acid 2-glycidyl ester, o-phthalic acid diglycidyl ester etc.; And as N-Racemic glycidol type Resins, epoxy or alicyclic type epoxy resin (Daiseru chemical company system " EHPE-3150 "), hydrogenation bisphenol A type epoxy resin, dicyclopentadiene-phenol type Resins, epoxy, naphthalene type Resins, epoxy etc.Wherein, particularly suitable is the aromatic epoxy resin of bisphenol A type epoxy resin, bisphenol f type epoxy resin, phenol novolak type epoxy resin, cresols phenolic resin varnish type epoxy resin, dihydroxyphenyl propane-phenolic resin varnish type epoxy resin etc.
For bringing into play described effect better, dissolve in the consumption of the epoxy compounds of thinner in the seal China ink against corrosion, be preferably in 0.1-50% (weight) for the black composition total amount of seal; Good especially, be 1-30% (weight) for the black composition total amount of seal.Wherein, the black composition total amount of described seal is deducted the organic solvent in the thinner of mixing simultaneously.
About the C. Photoepolymerizationinitiater initiater
As Photoepolymerizationinitiater initiater, the example that can enumerate has, the bitter almond oil camphor and the alkyl ether thereof of bitter almond oil camphor, benzoin methylether, ethoxybenzoin, bitter almond oil camphor propyl ether etc.; And phenyl methyl ketone, 2,2-dimethoxy-2-phenyl acetophenone, 2,2-diethoxy-2-phenyl acetophenone, 1, the phenyl methyl ketone class of 1-Er Lvyixianben, 1-hydroxycyclohexylphenylketone etc.; Reach anthraquinone class as 2-methylanthraquinone, 2-amyl anthraquinone etc.; And as 2,4-dimethyl thio-xanthene-one, 2,4-diethyl thio-xanthene-one, 2-chlorothio xanthone, 2, the thio-xanthene-one of 4-di-isopropyl thio-xanthene-one, 1-chloro-4-propoxy-thio-xanthene-one etc.; Reach the ketal class of methyl phenyl ketone dimethyl ketal, benzil dimethyl ketal etc.; And benzophenone, 3,3-dimethyl-4-methoxy benzophenone, 3,3 ', 4,4 '-four-(t-butylperoxy carbonyl) benzophenone, 4-benzoyl-4 '-benzophenone or the xanthene ketone of methyldiphenyl base sulphur etc.; And 2-methyl isophthalic acid-(4-(methyl sulphur) phenyl)-2-morpholino base-third-1-ketone, 2-benzoyl-2-dimethylamino-1-(4-morpholino base phenyl)-butanone-1,4,4 '-compound of the nitrogen atom of two-diethylamino benzophenone etc.; And 2,4,6-trimethylbenzoyl diphenyl phosphine oxide etc.These compounds also can be with phenylformic acid system or to the known photopolymerization promoter of the tertiary amine system of mesitylenic acid ethyl ester, p-(dimethylamino)-benzoic acid isopentyl ester, 2-dimethylaminoethyl benzene bitter almond oil camphor etc. etc. and sensitizing agent etc. and use.These Photoepolymerizationinitiater initiaters can use separately, or are used in combination mutually.
Again, can suitably select as the cyclic ketone with imidazolyl dipolymer and aminophenyl, the combination that encircles benzoquinones and tertiary amine or merocyanine and pyrrolotriazine derivatives more, and suitably select the light trigger, sensitizing agent etc. of the borate complex etc. of cationic dyestuff, seal China ink against corrosion of the present invention is made visible light or the black coating of the indurative seal of near infrared ray, but this occasion that only limits to have UV cured property just can comprise above-mentioned situation.Above-mentioned light trigger is particularly useful in the near infrared laser explosure method etc. of using.
For reaching the good balance between photo-hardening and the resulting physicals of filming against corrosion, the consumption of Photoepolymerizationinitiater initiater in the seal China ink against corrosion, preferably account for the 0.1-30% (weight) of the black coating composition total amount of whole seal, the organic solvent in the thinner that the black coating deduction of described seal is mixed.
About the D. thinner
Can be separately or and with photopolymerization monomer or organic solvent as thinner.As above-mentioned photopolymerization monomer, adducible example has (methyl) vinylformic acid 2-hydroxyl ethyl ester, (methyl) vinylformic acid 2-hydroxypropyl acrylate, the N-vinyl pyrrolidone, (methyl) acryloyl morpholine, methoxyl group Tetraglycol 99 (methyl) acrylate, methoxy poly (ethylene glycol) (methyl) acrylate, polyoxyethylene glycol two (methyl) acrylate, N, N-dimethyl (methyl) acrylamide, N-methylol (methyl) acrylamide, N, N-dimethylamino-propyl (methyl) acrylamide, (methyl) vinylformic acid N, the N-dimethylaminoethyl, (methyl) vinylformic acid N, N-dimethylamino propyl ester, the water-soluble monomer of trimeric cyanamide (methyl) acrylate etc.; And ethylene glycol bisthioglycolate (methyl) acrylate, triglycol two (methyl) acrylate, propylene glycol two (methyl) acrylate, tripropylene glycol two (methyl) acrylate, (methyl) vinylformic acid phenoxy ethyl, (methyl) tetrahydrofurfuryl acrylate, (methyl) cyclohexyl acrylate, TriMethylolPropane(TMP) two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate, tetramethylolmethane three (methyl) acrylate, tetramethylolmethane four (methyl) acrylate, Dipentaerythritol five (methyl) acrylate, Dipentaerythritol six (methyl) acrylate, (methyl) isobornyl acrylate, (list or two) (methyl) vinylformic acid ring pentyl ester, the list of (list or two) (methyl) vinylformic acid cyclopentenes ester and polyprotonic acid and (methyl) vinylformic acid hydroxyalkyl acrylate, two, three or the water-insoluble monomer of more polyester etc.; Reach acrylate (salt) monomer of polyester acrylate, urethane acrylate etc. etc.The monomer of above-mentioned water-soluble monomer and water-insoluble monomer etc. can be used in combination separately or suitably separately.
Again, as above-mentioned organic solvent, that can enumerate has ethanol, a propyl alcohol.Straight chain, side chain, divalence or the polyvalent alcohols of Virahol, butanols, isopropylcarbinol, 2-butanols, hexanol, ethylene glycol etc.; Reach ketone as methylethylketone, pimelinketone etc.; And aromatic hydrocarbon based as toluene, dimethylbenzene etc.; Oil as ス ワ ゾ Le system (Maruzen Oil Company's system), ソ Le ベ Star ソ system (エ Network ソ Application chemical company system) etc. is that fragrant family mixed solvent reaches the cellosolve class as cellosolve, ethylene glycol butyl ether etc.; Reach Trivalin SF class as Trivalin SF, diethylene glycol monobutyl ether etc.; And as the propylene glycol alkyl ethers of propylene glycol monomethyl ether etc.; And as the polypropylene glycol alkyl ether of dipropylene glycol methyl ether etc.; And as vinyl acetic monomer, N-BUTYL ACETATE, cellosolve acetate, acetate ethylene glycol butyl ether, acetate butyl card must ester, the acetates of propylene glycol monomethyl ether acetate etc.; And as the ethylene glycol bisthioglycolate alkyl ether etc.
The photopolymerization monomer of above-mentioned water-soluble monomer and water-insoluble monomer etc., the one-tenth that has diluted polymkeric substance grades, and makes when being in the state that is easy to apply, and has also regulated acid number, has given optical polymerism.Again, above-mentioned organic solvent with component of polymer dissolving, dilution, and it is made can apply aqueous in, also by the dry film of making.
Not necessarily the composition with photopolymerization monomer etc. of optical polymerism must be mixed in the black coating of seal against corrosion, with as described thinner.But if when mixing, its total amount of mixing then is preferably in below 50% (weight) of the black coating composition total amount of whole seal, and described seal is black will deduct the organic solvent that is impregnated in equally as thinner.When its consumption surpasses 50% (weight), and when being mixed, the adhesion on the surface of dry coating is strong excessively, when the negative masking film that will be painted with the figure line directly places the exsiccant film coated surface to expose, the problem of negative masking film corrupted etc. can take place.
On the other hand, can be same as the organic solvent of thinner with above-mentioned photopolymerization monomer, separately or mix more than two kinds and use.This composition is necessary to select,, and does not residue on the dry coating so that this composition can distribute rapidly when Procuring.The consumption of the organic solvent in the seal China ink against corrosion is preferably in for more than 5% of the black composition total amount of whole seal, is less than 5% as its consumption, then the coating difficulty of frisket.And suitable coating amount should suitably be regulated according to concrete coating method according to coating method and different.
In the photosensitive photosolder resist ink coating of the present invention, except mentioned component, also can mix the epoxy compounds that is insoluble in thinner, so long as in not hindering its electric erosion resistance and stable on heating scope, get final product.In addition, in the above-mentioned seal China ink against corrosion, also can add again as with end capped methylene phenylene diisocyanate, morpholine vulcabond, different Buddhist diketone isocyanic ester such as hexanolactam, oxime, malonic esters; And as the melmac of normal-butylization, the melmac of isobutyl, the urea resin of normal-butylization, butylated melamine-urea cocondensation resin, benzoguanamine the heat embrittlement composition of the aminoresin etc. of cocondensation resin etc.; And in UV cured epoxy resin as bisphenol A-type, phenolic varnish type, cresols varnish type, alicyclic type epoxy resin etc., addition (methyl) vinylformic acid, or the saturated or undersaturated multi-anhydride (these compound or multi-anhydrides that have two isocyanos in its molecule at least can be done partial cross-linked) of addition maleic anhydride, succinyl oxide, itaconic anhydride, tetrahydrophthalic acid etc. therein again; And as make the copolymer reaction of the ethylene type unsaturated compound of vinylbenzene-(methyl) vinylformic acid-(methyl) acrylate copolymer etc., or make ethylene type unsaturated monomer with epoxy group(ing) and its reaction again and the UV cured property polymkeric substance that obtains; And, add (methyl) acrylic acid UV cured property polymkeric substance again as in the ethylene copolymer of ethylene type unsaturated monomer as one of monomeric unit with epoxy group(ing); And can add the macromolecular compound of styrene-maleic acid resin, diallyl phthalate ester resin, phenoxy resin, melmac, urethane resin, fluoro-resin etc. again.
In above-mentioned seal China ink against corrosion, also can add on demand as the epoxy resin hardener of imdazole derivatives, polyamine class, guanamines class, tertiary amines, quaternary ammonium salt, Polyphenols, multi-anhydride etc. and hardening accelerator etc. again.Also can add weighting agent and tinting material as barium sulfate, silicon oxide, talcum powder, clay, lime carbonate etc.; And add as the flow agent of tensio-active agent that siloxanes and acrylate copolymer, fluorine are etc.Also can add the auxiliary agent that connects airtight as silane coupling agent etc.; Thixotropy colloid as aerogel; Reach polymerization retarder as quinhydrones, hydroquinone monomethyl ether, pyrogaelol, tert-butyl catechol, thiodiphenylamine etc.; The various additives of anti-clouding agent, fire retardant, defoamer, antioxidant etc. reach in order to improve dispersion stabilization, also can add tensio-active agent and macromolecule dispersing agent.
Available as the known methods of mixing such as three rollers mix, ball mill, sand mill of above-mentioned seal China ink against corrosion are prepared various compositions and additive.At this moment, also can be with the part among the A-D of mentioned component, for example the composition of A and C is pre-mixed, and disperses, and during use, remix is mixed remaining composition.
The optimal morphology that carries out an invention
Below, specify the present invention with embodiment, still, the present invention is not limited to these.
In addition, below employed " part " reach " % ", if no special instructions, calculate all by weight.Again, " weight-average molecular weight " measured by following test condition.
" weight-average molecular weight "
Is 10mg/ml preparation THF solution with each sample by solids component, respectively being that the injection volume of 100ul is measured.
GPC determinator: clear and electrician's corporate system SHODEX SYSTEM 11
Post: SHODEX KF-800P, KF-005, four posts in upright arrangement of KF003 and KF-001,
Moving-bed: THF
Flow: 1ml/ branch
Column temperature: 45 ℃
Detector: RI
Convert: polystyrene
Synthesis example 1
Have in reflux cooler, thermometer, the four-hole boiling flask of nitrogen replacement (flushing) at device with Glass tubing and agitator, adding 70 parts of glycidyl methacrylate, 10 parts of methyl methacrylates, 20 parts of methacrylic tert-butyl acrylates, acetic acid card must 100 parts of ester, 3 parts of 0.3 part of dodecyl mercaptans and Diisopropyl azodicarboxylates, under nitrogen gas stream, heat, 75 ℃ of following polymerizations 5 hours obtain 50% copolymer solution.In this 50% copolymer solution, add 0.05 part of quinhydrones, 37 parts in vinylformic acid, 0.2 part of dimethyl benzylamine again, under 100 ℃, carry out 24 hours addition reaction, then, adding 38 parts of Tetra Hydro Phthalic Anhydrides and acetic acid card must ester 72 parts, 100 ℃ of reactions 3 hours down.As shown in table 1, obtain weight-average molecular weight and be 22000 50% uv-hardening resin solution (A-1).
Synthesis example 2-4
With in the same method of synthesis example 1, obtain as shown in table 1,50% uv-hardening resin (A-2) and (A-4).
Reference example 1
Have in reflux cooler, thermometer, the four-hole boiling flask of nitrogen replacement (flushing) at device with Glass tubing and agitator, adding 40 parts of glycidyl methacrylate, 10 parts of methyl methacrylates, 50 parts of vinylbenzene, acetic acid card must 100 parts of ester, and 2 parts of Diisopropyl azodicarboxylates, under nitrogen gas stream, heat, 75 ℃ of following polymerizations 5 hours obtain 50% copolymer solution.
In this 50% copolymer solution, add 0.05 part of quinhydrones, 21 parts in vinylformic acid, 0.2 part of dimethyl benzylamine again, under 100 ℃, carry out 24 hours addition reaction, then, adding 33 parts of Tetra Hydro Phthalic Anhydrides and acetic acid card must ester 52 parts, 100 ℃ of reactions 3 hours down.As shown in table 1, obtain weight-average molecular weight and be 32000 50% uv-hardening resin solution (B-1).
Reference example 2
With the method same, obtain as shown in table 1,50% uv-hardening resin (B-2) with reference example 1.
Table 1
The synthesis example of uv-hardening resin and reference example (consumption unit: part)
(annotate 1) in table 1, the ethylene type unsaturated group contain ratio be contained among the uv-hardening resin 1kg ethylene type not
The mole number of saturated base is represented.
Reference example 3
With エ ピ Network ロ Application N-680 (the cresol-novolak varnish type Resins, epoxy of big Japanese Yin Mo chemical company system, epoxy equivalent (weight) 214) 214 parts of heating for dissolving are in 60 parts of acetic acid cards must ester, stir and to add 0.7 part of 74 parts in vinylformic acid, 0.1 part of quinhydrones and benzyldimethylamine down, with usual method 90-100 ℃ of reaction 24 hours down.Adding the acetic acid card in the reaction solution must ester 95 parts, and after the stirring, cooling obtains 65% acrylic acid epoxy ester solution (C-1).
Embodiment 1-6 and comparative example 1-4
With the mix composition of the each component shown in table 2 and the table 3 of three roller mullers, obtain the aqueous photosensitive photosolder resist ink coating that the relevant available sig water of embodiment and comparative example develops.In addition, when mixing エ ピ Network ロ Application N-695, EPPN-502H, EXA-7200H, エ ピ コ-ト 828, デ Na コ-Le EX-212, these compositions must be dissolved for 3 parts by ester with the acetic acid card in the above-mentioned component in advance, for the usefulness of mixing.
Table 2
The seal China ink against corrosion that embodiment is relevant mix component (doping level unit: part)
Table 3
The seal China ink against corrosion that comparative example is relevant mix component (doping level unit: part)
(annotate 2) in table 2-3, エ ピ Network ロ Application N-695 is the cresol-novolak varnish type epoxy tree of big Japanese Yin Mo chemical company system
Fat.
(annotate 3) in table 2-3, EPPN-502H be Japanese chemical drug corporate system, be many officials of base with three (hydroxy phenyl) methane
Can epoxy resin.
(annotate 4) in table 2-3, EXA-7200H is big Japanese Yin Mo chemical company system two ring-like Resins, epoxy.
(annotating 5) in table 2-3, エ ピ コ-ト 828 is an oiling SHELL epoxy corporate system bisphenol A type epoxy resin.
In table 2-3, デ Na コ-Le EX-212 shrinks for long rapids 1 of the industrial's system that changes into, 6-hexane diol two (annotating 6)
Glyceryl ether.
(annotating 7) in table 2-3, YX4000 is that the epoxy equivalent (weight) of above-mentioned oiling corporate system is 195 Resins, epoxy.
(annotating 8) in table 2-3, TEPIC-S is 100 Resins, epoxy for the epoxy equivalent (weight) of producing chemical industrial company's system daily.
(annotating 9) in table 2-3, イ Le ガ キ ュ ア-907 is the Photoepolymerizationinitiater initiater of チ バ ガ イ ギ corporate system.
(annotating 10) in table 2-3, カ ヤ キ ュ ア-ITX is Japanese chemical drug corporate system Photoepolymerizationinitiater initiater.
(annotate 11) in table 2-3, モ ダ Off ロ-be monsanto corporate system flow agent.
(annotating 12) in table 2-3, ス ワ ゾ Le 1500 is the aromatic series series solvent of the kind petroleum chemistry corporate system of ball.
Estimate each seal China ink against corrosion and finally form each performance of the printed chassis that anti-weldering films with following test method, its test-results is shown in table 4 and table 5.
The performance evaluation of seal China ink against corrosion
Surface adhesion
By thick be to apply the black coating of seal against corrosion with the screen painting method on whole of the shop copper laminated board formed of the Copper Foil glass epoxide base-material of 35 μ m, be solvent flashing, carrying out Procuring under each drying conditions at 10,20 and 30 minutes respectively under 80 ℃, making and respectively being coated with seal thickness China ink, dry coating is three kinds of coupons of 20 μ m., on ORCHMW201GX (オ-Network make made decompression connect airtight type two sides exposure machine), with 150mJ/cm2 irradiation ultraviolet radiation after, take out each drying conditions under and frisket, observe its adherent degree thereafter.Evaluation method
*: take off the frisket difficulty, damage frisket pattern line when shelling firmly.
△: after taking off frisket, can recognize the subsides trace of frisket on the dry coating.
Zero: it is easy to take off frisket, does not have the trace of subsides.Procuring tolerance band (Procuring time tolerance band)
By thick be to apply the black coating of seal against corrosion with the screen painting method on whole of the shop copper laminated board formed of the Copper Foil glass epoxide base-material of 35 μ m, be solvent flashing, under 80 ℃ respectively 10,20,30,40,50,60,70, and each drying conditions of 80 minutes under carry out Procuring, making and respectively being coated with seal thickness China ink, dry coating is 8 kinds of coupons of 20 μ m.Thereafter, the frisket that is painted with the pattern line directly connected airtight be attached on the coated surface, after the uviolizing with the optimum exposure of each seal China ink, the aqueous sodium carbonate with 1% is as developing solution, develop the developing performance when observing development and the formation situation of pattern line.Evaluation method
*: unexposed portion is video picture also, is difficult to remove, and can't form the pattern line.
△: the development of unexposed portion takes longer, in addition, can't form trickle pattern line part.
Zero: the dry coating of unexposed portion is removed easily, can obtain clearly pattern line.The residual stage
By thick be to apply the black coating of seal against corrosion with the screen painting method on whole of the shop copper laminated board formed of the Copper Foil glass epoxide base-material of 35 μ m, be solvent flashing, carry out Procuring under 80 ℃, 20 minutes drying conditions, making and respectively being coated with seal thickness China ink, dry coating is each coupons of 20 μ m.Thereafter, on ORC HMW201GX (オ-Network is made made decompression and connected airtight type two sides exposure machine), stage sheet PHOTE21 section (Hitachi changes into the exposure test frisket of industrial's system) is directly closely connected in the dry coating surface, and decompression is connected airtight it simultaneously.Irradiation respectively be 50 and the ultraviolet ray of 150mJ/cm2 after, be that developing solution carries out with 1% aqueous sodium carbonate, develop, obtain the remaining number of stages after the development, as the index of exposure sensitivity.The performance evaluation of printed circuit board (PCB)
Below, for confirming that the order by following (1) to (5) makes coupons by the performance of each printed circuit board (PCB) of seal China ink against corrosion manufacturing.
(1) working procedure of coating
By thick be on the shop copper laminated board formed of the Copper Foil glass epoxide base-material of 35 μ m, form pattern with etching method in advance, on whole of this laminated wood, apply the black coating of seal against corrosion again with the screen painting method, form ink layer against corrosion.
(2) Procuring operation
After the working procedure of coating, the solvent in the ink layer against corrosion of volatilization substrate surface carries out Procuring under 80 ℃, 20 minutes drying conditions, make the dry coating that thickness is 20 μ m.
(3) exposure process
Thereafter, the frisket that is painted with the pattern line directly connected airtight be attached on the coated surface, the uviolizing with the optimum exposure of each seal China ink exposes to the dry coating on the substrate surface selectively.
(4) developing procedure
Aqueous sodium carbonate with 1% develops on the dry coating after the exposure as developing solution, thus, removes unexposed part selectively, forms the pattern line of the dry coating of light stiffening on substrate.
(5) post-heating operation
To carry out the heat embrittlement of dry coating at the substrate of the pattern line that is formed with dry coating of developing procedure gained 150 ℃ of heating 30 minutes down, obtain the coupons of printed circuit board (PCB).With the coupons of above-mentioned operation gained, carry out following performance evaluation.
The image dissection degree
The figure line that observation is formed by the frisket pattern form situation, described pattern is by comprising that the wide and lines spacing of lines is that the concentric(al) circles of 40 μ m is formed.
Evaluation method
*: can't form the pattern line.
△: roughly formed pattern, still, part has gaps and omissions.
Zero: can obtain clearly pattern line.
The scolding tin thermotolerance
Solder flux uses LONCO 3355-11 (water soluble flux of London chemical company system), at first with this flux coating on coupons, then, this coupons be impregnated in 260 ℃ the fusion weld tin bath and reaches 10 seconds, washing, the degree of observing its surperficial albefaction.Again, carry out the stripping test (JIS D 0202 standard) of glassine paper adhesive tape, observe the variation of its tightlock status by crosscut.The evaluation method of surface albefaction
*: significantly albefaction.
△: albefaction is slightly arranged.
Zero: no abnormal.
The evaluation method of connecting airtight property
*: do not do crosscut when test, the expansion of coated film has taken place or peel off.
△: when peeling off band, part also takes place the cross section part peels off.
Zero: the cross section part is not peeled off.
Other test subject
Estimate according to usual method.
Table 4
About the test-results that embodiment did
Table 5
The test-results of doing about comparative example
Utilizability on the industry
The formation of the photosensitive photosolder resist ink coating of diluted alkaline developable of the present invention is as above being tried Test in this operating process of printing black coating, the tolerance band of precuring is wide, the substrate after the precuring Can keep for a long time, and the image dissection degree of this substrate, sensitivity are good. In addition, using this The photosolder resist ink coating of invention or use by photosolder resist ink coating of the present invention form printing During the manufacture method of circuit board, finally substrate form against corrosion film shown excellent It is anti-that connecting airtight property of substrate, resistance to chemical reagents, anti-metal plating and electrical property reach especially excellent scolding tin Hot and electric erosion resistance.
Therefore, the printed circuit board (PCB) made from above-mentioned anti-corrosion seal China ink has excellent substrate and connects airtight The property, resistance to chemical reagents, electrical property and anti-metal plating and especially excellent scolding tin heat resistance and Electric erosion resistance, and, the prolonged variation that physical property does not take place.
According to above-mentioned feature, the black coating of seal against corrosion with above-mentioned can high efficiency production go out height The printed circuit board (PCB) of grade, and the quality of described printed circuit board (PCB) is even, finally is used for electrical equipment During goods, help for a long time the minimizing of the incidence of fault.
Claims (7)
1. photosensitive photosolder resist ink coating that available sig water develops is characterized in that described seal China ink contains:
A. the uv-hardening resin that contains aromatic nucleus part 0-20% (weight), described resin system is had the ethylene type unsaturated monomer 40-100 mole % of epoxy group(ing) by (a), (b) by the polymkeric substance that can form with other ethylene type unsaturated monomer 0-60 mole % of above-mentioned monomer copolymerization, to this polymkeric substance of each epoxy equivalent (weight), with 0.7-1.2 stoichiometric (methyl) vinylformic acid, and saturated or undersaturated multi-anhydride reaction and getting;
B. dissolve in the epoxy compounds of thinner;
C. Photoepolymerizationinitiater initiater; And
D. thinner.
2. photosensitive photosolder resist ink coating as claimed in claim 1 is characterized in that, the ethylene type unsaturated monomer that (a) in the uv-hardening resin among the described composition A contains epoxy group(ing) is (methyl) glycidyl acrylate.
3. photosensitive photosolder resist ink coating as claimed in claim 1 is characterized in that, the epoxy compounds that described composition B dissolves in thinner is an aromatic epoxy resin.
4. photosensitive photosolder resist ink coating as claimed in claim 1 is characterized in that, the epoxy compounds that described composition B dissolves in thinner is at least a Resins, epoxy that is selected from bisphenol A type epoxy resin and the phenolic resin varnish type epoxy resin.
5. a printed circuit board (PCB) is characterized in that, uses each the described photosensitive photosolder resist ink coating among the claim 1-4 to form certain scolding tin film figure that is coated with against corrosion on substrate.
6. the manufacture method of a printed circuit board (PCB) is characterized in that, uses each the described photosensitive photosolder resist ink coating among the claim 1-4 to form certain scolding tin film figure that is coated with against corrosion on substrate.
7. the manufacture method of printed circuit board (PCB) as claimed in claim 6 is characterized in that, described method comprises following operation:
(1) has been pre-formed on the substrate of printed circuit pattern on its surface, applied the black coating of seal against corrosion, on this substrate, formed the working procedure of coating of anti-weldering ink layer against corrosion;
(2) the photosensitive photosolder resist ink coating that is formed by working procedure of coating is carried out Procuring and handle, on substrate, form the Procuring operation of dry coating;
Use the frisket that be painted with certain pattern line, selectively in Procuring operation be formed at exposure process that dry coating substrate surface on expose (3) thereafter;
(4) on the dry coating after the exposure, remove unexposed part selectively with alkali lye, the developing procedure of the pattern line of the dry coating of formation light stiffening reaches on substrate
(5) the pattern line that is formed at on-chip dry coating in developing procedure is carried out the post-heating operation of heat embrittlement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP268310/94 | 1994-10-05 | ||
| JP26831094 | 1994-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1136324A true CN1136324A (en) | 1996-11-20 |
Family
ID=17456762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95190991A Pending CN1136324A (en) | 1994-10-05 | 1995-10-02 | Photosolder resist ink, printed circuit board, and process for producing the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5821031A (en) |
| EP (1) | EP0733683A4 (en) |
| JP (1) | JP3580429B2 (en) |
| CN (1) | CN1136324A (en) |
| TW (1) | TW402626B (en) |
| WO (1) | WO1996011239A1 (en) |
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| CN105733361A (en) * | 2016-04-29 | 2016-07-06 | 珠海保税区天然宝杰数码科技材料有限公司 | Etching-resistant jet ink and application thereof |
| CN106377019A (en) * | 2015-07-31 | 2017-02-08 | Ykk株式会社 | Film forming device, zipper teeth chain belt manufacture method, and zipper teeth chain belt |
| CN108003271A (en) * | 2017-12-25 | 2018-05-08 | 佛山市三求光固材料股份有限公司 | A kind of alkali soluble type anti-plate photosensitive resin and preparation method and application |
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| JPS6462375A (en) * | 1987-09-02 | 1989-03-08 | Arakawa Chem Ind | Liquid photosolder resist ink composition of alkali development type |
| JPH01203424A (en) * | 1988-02-09 | 1989-08-16 | Toagosei Chem Ind Co Ltd | Curable composition |
| JP2547884B2 (en) * | 1990-04-06 | 1996-10-23 | タムラ化研株式会社 | Photosensitive resin composition |
| JP2938959B2 (en) * | 1990-11-01 | 1999-08-25 | 互応化学工業株式会社 | Liquid resist ink composition |
| JPH0519470A (en) * | 1991-01-09 | 1993-01-29 | Goou Kagaku Kogyo Kk | Resist ink composition |
| JPH0693221A (en) * | 1992-09-09 | 1994-04-05 | Goou Kagaku Kogyo Kk | Liquid resist ink composition and printed circuit board |
| JP3329877B2 (en) * | 1993-03-02 | 2002-09-30 | 互応化学工業株式会社 | Resist ink composition for manufacturing printed circuit board, resist film using the same, and printed circuit board |
| JPH06271645A (en) * | 1993-03-18 | 1994-09-27 | Ajinomoto Co Inc | Unsaturated group-containing polycarboxylic acid resin |
| JPH0720631A (en) * | 1993-06-30 | 1995-01-24 | Taiyo Ink Mfg Ltd | Photosensitive thermosetting resin composition and method for forming solder mask |
| JPH0772624A (en) * | 1993-09-02 | 1995-03-17 | Goou Kagaku Kogyo Kk | Photosensitive resin composition as well as film, resist ink, resist, solder resist and printed circuit board formed by using the same |
-
1995
- 1995-10-02 US US08/648,002 patent/US5821031A/en not_active Expired - Lifetime
- 1995-10-02 JP JP51247396A patent/JP3580429B2/en not_active Expired - Fee Related
- 1995-10-02 WO PCT/JP1995/002017 patent/WO1996011239A1/en not_active Application Discontinuation
- 1995-10-02 EP EP95932964A patent/EP0733683A4/en not_active Ceased
- 1995-10-02 CN CN95190991A patent/CN1136324A/en active Pending
-
1996
- 1996-03-19 TW TW085103292A patent/TW402626B/en not_active IP Right Cessation
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|---|---|---|---|---|
| CN103145988A (en) * | 2013-02-28 | 2013-06-12 | 中山大学 | Polyimide oligomer and liquid photoimagable solder resist ink |
| CN106377019A (en) * | 2015-07-31 | 2017-02-08 | Ykk株式会社 | Film forming device, zipper teeth chain belt manufacture method, and zipper teeth chain belt |
| CN105733361A (en) * | 2016-04-29 | 2016-07-06 | 珠海保税区天然宝杰数码科技材料有限公司 | Etching-resistant jet ink and application thereof |
| CN108003271A (en) * | 2017-12-25 | 2018-05-08 | 佛山市三求光固材料股份有限公司 | A kind of alkali soluble type anti-plate photosensitive resin and preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| US5821031A (en) | 1998-10-13 |
| JP3580429B2 (en) | 2004-10-20 |
| EP0733683A4 (en) | 1998-04-01 |
| TW402626B (en) | 2000-08-21 |
| EP0733683A1 (en) | 1996-09-25 |
| WO1996011239A1 (en) | 1996-04-18 |
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